CN215960185U - applicator - Google Patents

Abstract

Translated fromChinese

本实用新型描述了一种施加装置，是用于将医疗器械施加至宿主的施加装置，其包括具有移动空间的壳体、可分离地盖设于壳体的盖、以及设置在移动空间内的辅助机构，壳体包括操作时与宿主接近的近端和与宿主远离的远端、以及可释放地保持辅助机构的保持部，盖设置于近端并且包括配置为可解除地限制辅助机构的限制部，辅助机构配置为可收纳医疗器械，当辅助机构被释放且被解除限制时可被朝向近端驱动以将收纳于辅助机构的医疗器械施加至宿主，其中，当盖与壳体分离时限制部解除对辅助机构的限制。根据本实用新型，能够提供一种用于将医疗器械施加至宿主、且能够有效抑制触发机构发生不期望的移动的施加装置。

The utility model describes an application device, which is an application device for applying a medical device to a host, which comprises a casing having a moving space, a cover detachably covering the casing, and a an assist mechanism, the housing includes a proximal end operatively proximate to the host and a distal end remote from the host, and a retaining portion that releasably retains the assist mechanism, a cover disposed at the proximal end and including a restraint configured to releasably restrain the assist mechanism the auxiliary mechanism is configured to receive a medical instrument, and when the auxiliary mechanism is released and unrestrained, can be driven proximally to apply the medical instrument received in the auxiliary mechanism to the host, wherein the restraint when the cover is separated from the housing The Ministry lifts restrictions on auxiliary agencies. According to the present invention, an application device for applying a medical instrument to a host and capable of effectively suppressing undesired movement of a trigger mechanism can be provided.

Description

Application device

Technical Field

The present invention generally relates to an applicator.

Background

For purposes of clinical diagnosis or personal health monitoring, it is sometimes desirable to insert a medical device containing an analyte sensor beneath the skin to detect the concentration of a particular constituent (e.g., glucose, salts, lactate, oxygen) in interstitial fluid.

In particular, it is necessary for diabetic patients to continuously monitor the glucose concentration of interstitial fluid on a daily basis in real time to reduce and minimize the occurrence of insulin-dependent complications such as hypoglycemia and hyperglycemia in diabetic patients. Typically, the glucose concentration in the interstitial fluid decreases from the first glucose concentration in the blood as the glucose concentration begins to decrease, thereby indicating that the decrease in glucose concentration in the interstitial fluid may be predictive of impending hypoglycemia.

Analyte monitoring devices that facilitate a user in real-time monitoring the concentration of a particular constituent in interstitial fluid on a daily basis typically include an analyte sensor inserted beneath the skin in contact with the interstitial fluid and a sensor control device applied to the skin. And the analyte monitoring device is typically placed on the upper arm. In order to place the analyte monitoring device in the proper working position, it is often necessary to resort to an application device. I.e. the analyte sensor is inserted under the skin by the application device while the sensor control device is applied to the skin. Such applicators typically require one-handed operation by the user, and therefore require simple, safe operation of the applicator and reliable insertion and application.

Such currently marketed applicators tend to be complex to operate, uncontrollable in pushing force, misaligned in insertion process, and may also suffer from poor user experience and unreliable monitoring results when the analyte monitoring device is not properly inserted and applied due to undesired impacts or mis-touches when the applicator is not placed in a predetermined position.

Disclosure of Invention

The present invention has been made in view of the above-described state of the art, and an object thereof is to provide an application device for applying a medical instrument to a host.

To this end, the utility model provides an application device for applying a medical instrument to a host, which comprises a shell with a moving space, a cover detachably covered on the shell and an auxiliary mechanism arranged in the moving space, the housing includes a proximal end operatively proximal to the host and a distal end distal to the host, and a retaining portion releasably retaining the assist mechanism, the cap is disposed at the proximal end and includes a restraining portion configured to releasably restrain the assist mechanism, the assist mechanism being configured to receive the medical instrument, is actuatable toward the proximal end to apply a medical instrument received in the assist mechanism to the host when the assist mechanism is released and unrestrained, wherein the restricting portion releases the restriction of the assist mechanism when the cover is separated from the housing.

In the application device according to the present invention, the medical instrument housed in the assist mechanism can be applied to the host by the assist mechanism, and the undesired movement of the assist mechanism toward the proximal end can be restricted by the cap having the restricting portion provided at the proximal end of the housing, so that the adverse effect of the erroneous operation can be reduced.

In the applying apparatus according to the present invention, the housing may optionally include a first housing and a second housing, and the first housing and the second housing may be assembled to form the moving space.

In the application device according to the present invention, the housing may have a side engaging groove, and the cover may include a cover bottom portion and a cover engaging portion provided on the cover bottom portion, the cover engaging portion engaging with the side engaging groove to fit and join the cover to the housing. In this case, the cover can be detachably fitted to the housing by the cover engaging portion.

Further, in the applying device relating to the present invention, optionally, the cap includes a cap bottom portion, and the restricting portion is formed by extending from the cap bottom portion toward the distal end.

In the applying device according to the present invention, when the assisting mechanism is held by the holding portion and the cover is provided on the housing, a surface of the medical instrument accommodated in the assisting mechanism facing the proximal end may be brought into contact with a surface of the regulating portion facing the distal end. In this case, the restriction portion can support the medical instrument accommodated in the assist mechanism, whereby it is possible to suppress the assist mechanism from being undesirably released due to, for example, an erroneous operation.

In the applicator according to the present invention, it is preferable that, when the assisting mechanism is held by the holding portion and the cap is provided to the housing, a surface of the medical instrument accommodated in the assisting mechanism facing the proximal end and a surface of the regulating portion facing the distal end have a predetermined interval therebetween, the predetermined interval being in a range of 1mm to 10 mm. In this case, the movement of the assist mechanism within the predetermined range can be restricted by the restricting portion.

In addition, in the application device according to the present invention, optionally, the auxiliary mechanism includes a moving body, a housing portion provided on the moving body and facing the proximal end for housing the medical instrument, and a piercing member releasably provided on the moving body, the moving body is releasably held by the holding portion, and the moving body is configured to be driven toward the proximal end after being released to push the medical instrument housed in the housing portion toward the host.

In the applying apparatus according to the present invention, the auxiliary mechanism may include a lock portion that engages with the holding portion to releasably hold the moving body to the housing.

Further, in the application device relating to the present invention, optionally, the medical instrument includes a sensor which can be placed partially or entirely under the skin of the host, and an application portion which is connected to the sensor and can be applied to the body surface of the host.

In addition, in the applying device according to the present invention, it is preferable that the applying device includes a first drive mechanism configured to act toward the proximal end toward the moving body, and a second drive mechanism configured to act toward the distal end toward the penetrating member.

According to the application device of the utility model, the trigger mechanism can be effectively inhibited from undesired movement, thereby reducing the adverse effect caused by misoperation.

Drawings

Fig. 1 is a schematic view showing a first view angle of a medical instrument according to an example of the present embodiment; fig. 2 is a schematic diagram showing a second view angle of the medical device according to the example of the embodiment.

Fig. 3A is an overall appearance diagram showing a first viewing angle of an application device according to an example of the present embodiment; fig. 3B is a schematic overall appearance diagram showing a second viewing angle of the application device according to the example of the present embodiment.

Fig. 4 is an exploded schematic view showing an application device according to an example of the present embodiment.

Fig. 5A is a perspective view showing a periphery of a first housing according to an example of the present embodiment; fig. 5B is a schematic perspective view showing an end portion of the first housing according to the example of the present embodiment.

Fig. 6A is an exploded schematic view showing the holding portion, the moving body, and the first drive mechanism according to the example of the present embodiment; fig. 6B is a schematic sectional view showing a state where the moving body according to the present embodiment example is held; fig. 6C is a schematic sectional view showing a state where the moving body according to the present embodiment example is released.

Fig. 7A is an exploded schematic view showing a first view of the second housing and the assist mechanism according to the example of the embodiment; fig. 7B is an exploded schematic view showing a second perspective of the second housing and the assist mechanism according to the example of the present embodiment.

Fig. 8 is a schematic view showing a cover according to an example of the present embodiment.

Fig. 9 is a schematic diagram showing a positional relationship between the cover according to the example of the present embodiment and the assist mechanism when the cover is attached to the housing.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same components are denoted by the same reference numerals, and redundant description thereof is omitted. The drawings are schematic and the ratio of the dimensions of the components and the shapes of the components may be different from the actual ones.

It is noted that, as used herein, the terms "comprises," "comprising," or any other variation thereof, such that a process, method, system, article, or apparatus that comprises or has a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include or have other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, the subtitles and the like referred to in the following description of the present invention are not intended to limit the content or the scope of the present invention, and serve only as a cue for reading. Such a subtitle should neither be understood as a content for segmenting an article, nor should the content under the subtitle be limited to only the scope of the subtitle.

The present invention relates to an application device which may be used for applying a medical device to a host. The application device according to the present embodiment can effectively suppress the occurrence of an unexpected movement of the trigger mechanism, thereby reducing adverse effects caused by an erroneous operation.

The applicator according to the present embodiment may be simply referred to as an applicator, and may also be referred to as a booster, a delivery device, an implantation device, an application device, an auxiliary device, or the like. Note that each name is intended to represent a device for applying a medical device to a host according to the present embodiment, and should not be construed as limiting.

In this embodiment, themedical device 800 may be applied to a host via theapplication apparatus 1000 and applied to a desired location, and the host may acquire physiological information through themedical device 800 applied to itself. Themedical device 800 applied to the host may transmit the acquired physiological information to an external reading device, for example, by wireless, thereby enabling the host to read and monitor its own physiological information.

In some examples, themedical instrument 800 may be a sensing device. In some examples,medical device 800 may be an analyte sensor device that may generate information of a particular analyte in a bodily fluid based on the bodily fluid, or the like. The analyte for which the analyte sensor apparatus is directed may be glucose, urea, uric acid, acetylcholine, amylase, bilirubin, cholesterol, chorionic gonadotropin, creatine kinase, creatine, creatinine, DNA, fructosamine, glutamine, growth hormone, hormones, ketone bodies, lactate, oxygen, peroxide, prostate specific antigen, prothrombin, RNA, thyroid stimulating hormone, or troponin.

Fig. 1 is a schematic diagram showing a first view angle of amedical instrument 800 according to an example of the present embodiment; fig. 2 is a schematic diagram showing a second view angle of themedical instrument 800 according to the example of the present embodiment.

In some examples, themedical device 800 may include asensor 820, aconnection portion 840, and an applicator portion 860 (see fig. 1 or 2). Wherein thesensor 820 may be connected to theapplication section 860 via theconnection section 840. Thesensor 820 may be placed partially or wholly subcutaneously in the host. In some examples,sensor 820 may react with glucose in subcutaneous tissue fluid after being placed subcutaneously to generate glucose information for the host. Theapplication section 860 may be applied to the body surface of the host. In some examples, theapplicator 860 may also receive glucose information generated by thesensor 820.

In some examples,sensor 820 may include an implant portion (not shown) for implantation within a host. The implanted portion may generate a sensing signal (e.g., a current signal) in response to interstitial fluid or blood in the host. In some examples, theapplicator 860 may include an electronic system (not shown). The implanted portion (not shown) of thesensor 820 may react with interstitial fluid or blood in the host to generate a sensing signal (e.g., an electrical current signal) and transmit the sensing signal to the electronic system of thebody surface applicator 860, which processes the sensing signal to obtain an analyte concentration.

In some examples, theapplicator 860 may also include a communication module (not shown). The communication module may communicate with an external device (e.g., a smart terminal).

As described above, themedical device 800 according to the present embodiment can be applied to a host by theapplication apparatus 1000. Hereinafter, theapplicator 1000 according to the present embodiment will be described in detail with reference to the drawings.

(applying device 1000)

As described above, themedical device 800 according to the present embodiment can be applied to a host by theapplication apparatus 1000. Hereinafter, theapplicator 1000 according to the present embodiment will be described in detail with reference to the drawings.

Fig. 3A is an overall external view showing a first viewing angle of the applyingapparatus 1000 according to the example of the present embodiment; fig. 3B is an overall external view diagram showing a second viewing angle of theapplication device 1000 according to the example of the present embodiment; fig. 4 is an exploded schematic view showing anapplicator 1000 according to an example of the present embodiment. In fig. 3A, 3B and 4, a line CA schematically represents the central axis of theapplicator 1000.

In the present embodiment, theapplication device 1000 may include ahousing 10 that may provide a movement space, and anassist mechanism 20 configured to be movable within the movement space of the housing 10 (see fig. 3A, 3B, and 4). Wherein thehousing 10 may have a proximal end operatively proximal to the host and a distal end distal to the host. Theassist mechanism 20 may be releasably retained to thehousing 10 and may receive themedical instrument 800. Theassist mechanism 20 may be configured to be movable relative to thehousing 10 and driven toward the host (or proximal end) to apply themedical device 800 to the host when released.

In some examples, thehousing 10 may include afirst shell 100 and asecond shell 140. Thefirst housing 100 and thesecond housing 140 may form a movement space after being assembled and combined. Thefirst housing 100 may releasably retain theassist mechanism 20. Thesecond housing 140 may define an application location of themedical device 800 on a body surface of a host and may define a path of movement of theassist mechanism 20. Theassist mechanism 20, when released by thefirst housing 100, can move relative to thesecond housing 140 along a travel path defined by thesecond housing 140 and apply themedical device 800 to an application location defined by thesecond housing 140.

In some examples, theassist mechanism 20 may include a movingbody 200, areceptacle 250, and a piercing member 260 (see fig. 4). The movingbody 200 may be releasably retained to thefirst housing 100, and the movingbody 200 may be configured to be movable along a movement path defined by thesecond housing 140 when released. The receivingportion 250 may be disposed at the movingbody 200 and may be configured to receive and receive themedical device 800, and the receivingportion 250 may be driven toward the application position defined by thesecond housing 140.

In some examples, the piercingmember 260 may be provided to the movingbody 200 in such a manner as to pass through the receivingportion 250. The movingbody 200 may be moved toward the proximal end of thehousing 10 after being released, and the receivingportion 250 and the piercingmember 260 are also moved toward the proximal end of thehousing 10 to apply themedical device 800 received in the receivingportion 250 to the host.

In some examples, the penetratingmember 260 may penetrate the skin of the host, thereby placing themedical device 800 at least partially beneath the skin of the host.

In some examples, theapplicator 1000 may further include acover 190 detachably provided to the housing 10 (see fig. 4). Thecover 190 may be disposed at the proximal end of thehousing 10, and thecover 190 may include a restrainingportion 196 configured to releasably restrain theassist mechanism 20. When thecover 190 is provided to thehousing 10, the restrictingportion 196 may restrict the movement of theassist mechanism 20 toward the proximal end of thehousing 10 to suppress an undesired movement of theassist mechanism 20 toward the proximal end of thehousing 10; when thecover 190 is separated from thehousing 10, the restrictingportion 196 may release the restriction of theassist mechanism 20.

Additionally, in some examples, theapplicator 1000 may further include a first drive mechanism 30 (see fig. 4). Thefirst drive mechanism 30 may be configured to act in a proximal manner on the movingbody 200. When the movingbody 200 is released, the movingbody 200 may be driven proximally by thefirst drive mechanism 30 to push themedical device 800 contained within thecontainment portion 250 toward the host, for example, to an application position defined by thesecond housing 140. Additionally, themedical device 800 may be at least partially positioned subcutaneously in a host via the penetratingmember 260.

In other examples, theapplicator 1000 may not include thefirst drive mechanism 30. In this case, when the movingbody 200 is released, the movingbody 200 may also be manually driven to move toward the proximal end.

Additionally, in some examples, the piercingmember 260 may be releasably disposed to the movingbody 200, and the piercingmember 260 may be configured to move relative to thereceptacle 250 when released.

Additionally, in some examples, theapplicator 1000 may further include a second drive mechanism 40 (see fig. 4). Thesecond drive mechanism 40 may be configured to act distally toward the piercingmember 260. When the piercingmember 260 is released, the piercingmember 260 can be driven distally by thesecond drive mechanism 40 to move the piercingmember 260 away from the host.

In other examples, theapplicator 1000 may not include thesecond drive mechanism 40. In this case, the piercingmember 260 may be manually driven away from the host. For example, in some examples, the piercingmember 260 may also be integrally connected with themotion body 200, with the piercingmember 260 being moved away from the host by manually moving themotion body 200 in a direction away from the host.

In some examples, as described above, thehousing 10 may include the first casing 100 (see fig. 4). In some examples,first housing 100 may include aperimeter portion 110 and an end portion 120 (see fig. 4).

Fig. 5A is a perspective view showing aperipheral portion 110 of thefirst housing 100 according to the example of the present embodiment; fig. 5B is a schematic perspective view showing theend 120 of thefirst housing 100 according to the example of the present embodiment. Thecircumferential portion 110 may be formed as a hollow cylindrical shell that penetrates up and down along the central axis CA of the applicator 1000 (see fig. 5A), and theend portion 120 may be provided on thecircumferential portion 110 so as to be close to the distal end of thehousing 10. In some examples, the central axis CA may pass through the geometric center of the end 12.

In some examples, a peripheral rib 112 (see fig. 5A) extending substantially in the direction of the central axis CA may be provided on an inner wall of theperipheral portion 110. In some examples, the number ofperipheral ribs 112 may be multiple, such as 2, 3, or 4. In the embodiment shown in fig. 5A,peripheral ribs 112 are 4 in number, andperipheral ribs 112 may includeperipheral rib 112a,peripheral rib 112b,peripheral rib 112c, andperipheral rib 112 d. In some examples, theperipheral ribs 112 can act as reinforcing ribs to effectively increase the resistance of theperipheral portion 110 to deformation. In some examples,peripheral ribs 112 may also act as guide ribs to facilitate assembly offirst housing 100 withsecond housing 140.

In some examples, a connecting post 114 (see fig. 5A) substantially parallel to the central axis CA may also be provided on the inner wall of theperipheral portion 110. In some examples, the number of connectingposts 114 may be multiple, such as 2, 3, or 4. In the embodiment shown in fig. 5A, the number of connectingposts 114 is 3, and the connectingposts 114 can include connectingposts 114a, 114b, and 114 c. Theconnection post 114 may be fitted in combination with thesecond housing 140 by being fitted with a hole provided on the second housing 140 (described later).

In some examples, theend 120 can include a generally cylindrical end body 121 (see fig. 5B).

In some examples, thefirst housing 100 may include a holdingportion 130. The holdingportion 130 may releasably hold theassist mechanism 20. In some examples, theretention portion 130 may be disposed at the end portion 120 (see fig. 5B). In some examples, theholder 130 may extend from theend body 120 along the central axis CA toward the proximal end of theapplicator 1000. In some examples, the number of retainingportions 130 may be one or more, such as 1, 2, 3, or 4. In the embodiment shown in fig. 5B, the number of the holdingportions 130 may be 2, and thefirst housing 100 may include the holdingportions 130a and 130B. The holdingportions 130a and 130B may be disposed at equal intervals on opposite sides of the central axis CA (see fig. 5B).

In some examples, theholder 130 may include anarm 132 extending in a direction substantially along the central axis CA, and aprotrusion 134 protruding from thearm 132 toward the central axis CA in a direction substantially orthogonal to the central axis CA (see fig. 5B). In some examples, thearms 132 of theholder 130 may be formed by theend body 121 extending outward.

In some examples, thearms 132 of theholder 130 may have elasticity. In some examples, thearms 132 of theholder 130 may tend to contract in a distal-to-proximal direction toward the central axis CA. That is, in a natural state (i.e., a state in which no external force is applied), the end of thearm 132 near the proximal end is closer to the central axis CA than the end of thearm 132 near the distal end.

In other examples, thearm 132 may also be substantially parallel to the central axis CA. In some examples,arm 132 may pivot whenarm 132 is acted upon in a direction substantially orthogonal to central axis CA. For example, whenarm 132 is acted upon in a direction generally orthogonal to central axis CA in a manner away from central axis CA,arm 132 may pivot such that the end ofarm 132 near the proximal end moves away from central axis CA.

In some examples, theprotrusion 134 of theretention portion 130 may have a distally facing surface. In some examples, the distally facing surface of theprojection 134 may be substantially orthogonal to the central axis CA. The retained member (e.g., the lockingportion 236 of thesport body 200 described immediately below) may be retained and not move proximally by overlapping/abutting the distally facing surface of theprojection 134.

That is, the holdingpart 130 may be a snap, latch structure formed on the first housing 100 (e.g., theend 120 of the first housing 100). For example, the holdingportion 130 may be formed in a finger-like, straight, L-like, J-like, Z-like structure that can be at least divided into two parts, at least one part of which (for example, an arm connected to the first housing 100) can be pivoted, and the other part (for example, a projection that projects outward from the arm and abuts on the held member) can be moved away from the initial position along with the pivoting, thereby releasing the hook, latch, top, support, and the like of the held member.

In some examples, as described above, the assistingmechanism 20 may include the movingbody 200, and the accommodating portion 250 (see fig. 6A) provided on the movingbody 200. The movingbody 200 may be releasably held on thefirst housing 100.

In some examples, the movingbody 200 may be releasably retained by the retainingportion 130. After being released, the movingbody 200 may be driven proximally to push themedical device 800 housed within thehousing 250 toward the host.

In some examples, a first driving part 30 (see fig. 6A) may be provided between the movingbody 200 and thefirst housing 100. Thefirst driving part 30 may act on the movingbody 200 in a proximal manner. After being released, the movingbody 200 can be driven proximally by the first drivingpart 30 to push themedical instrument 800 accommodated in theaccommodating part 250 toward the host.

In some examples, the movingbody 200 may include afirst bottom 210, asecond bottom 220, and asidewall 230 connecting thefirst bottom 210 and the second bottom 220 (see fig. 6A). Thefirst bottom 210 may be near the distal end, thesecond bottom 220 may be near the proximal end, and the receivingportion 250 may be disposed at thesecond bottom 220.

In some examples, a locking portion 236 (see fig. 6A) may be provided on theside wall 230 of the movingbody 200. The lockingportion 236 may cooperate with the holdingportion 130 such that the movingbody 200 is held to thefirst housing 100.

In some examples, the number oflatch portions 236 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of latchingportions 236 and the number of retainingportions 130 may be the same. In the embodiment shown in fig. 6A, the number of the lockingportions 236 is 2, and the movingbody 200 may include a locking portion 236A and a lockingportion 236 b.

In some examples, thelatch portion 236 may be formed as a snap-fit structure. Specifically, thedetent portion 236 may have a proximally facing surface that the retainingportion 130 may engage, abut or engage to retain the movingbody 200 and when the retainingportion 130 may release the movingbody 200 by moving away from the surface.

Referring to fig. 6B and 6C, in the embodiment shown in fig. 6B and 6C, the holdingportion 130 is formed in an L shape, and the lockingportion 236 is formed in a hollow structure. When the movingbody 200 is held, as shown in fig. 6B, theprotrusion 134 of the holdingportion 130 is located within the hollow structure of the lockingportion 236, thereby supporting the movingbody 200 to hold the movingbody 200. When the movingbody 200 is released, that is, as shown in fig. 6C, thearm 132 of the holdingportion 130 pivots and moves theprojection 134 away from the central axis CA, theprojection 134 leaves the hollow structure of the lockingportion 236, so that the movingbody 200 is released, and the movingbody 200 moves toward the proximal end by thefirst drive mechanism 30.

In some examples, theapplicator 1000 may further include a first trigger mechanism 50 (see fig. 4). Thefirst trigger mechanism 50 is configured to trigger the holdingportion 130 so that the movingbody 200 is released by the holdingportion 130. In some examples, thefirst trigger mechanism 50 may be configured to actuate the holdingportion 130 or thelatch portion 236 away from each other to release the movingbody 200. For example, thefirst trigger mechanism 50 may be configured to actuate the holdingportion 130 to move away from the central axis CA to release the holding of the lockingportion 236, thereby causing the movingbody 200 to be released.

In some examples, thefirst trigger mechanism 50 may be disposed at theend 120.

In some examples, a false touch prevention mechanism 520 (see fig. 4) may be provided between thefirst trigger 50 and theend 120. In some examples, theanti-false touch mechanism 520 may be hairpin-shaped. In this case, the hairpin-shaped erroneous-touch prevention mechanism 520 can effectively suppress thefirst trigger mechanism 50 from undesirably moving toward the proximal end.

Fig. 7A is an exploded schematic view showing a first perspective of thesecond housing 140 and theassist mechanism 20; fig. 7B is an exploded schematic view showing a second perspective of thesecond housing 140 and theassist mechanism 20.

In some examples, thefirst bottom 210 and thesidewall 230 of the movingbody 200 may be integrally formed. In other examples, thefirst bottom 210 of the movingbody 200 may be detachably coupled to thesidewall 230.

In some examples, thefirst bottom portion 210 may have a junction 214 (see fig. 7A). In some examples, the number ofjoints 214 may be one or more, such as 1, 2, 3, or 4.

In some examples, thesidewall 230 may have a moving body stop 238. In some examples, the moving body limiter 238 may include two ridges disposed side-by-side and a groove between the two ridges. Thecoupling portion 214 is coupled to theside wall 230 by coupling with the ends of the two ridges of the moving body restricting portion 238.

In some examples, thesecond housing 140 can include afirst confinement mechanism 150 and asecond confinement mechanism 170. In some examples, the first and second limitingmechanisms 150, 170 may be in communication with each other. In some examples, the first and second limitingmechanisms 150, 170 may be hollow cylindrical structures. In some examples, the firstdefining mechanism 150 may releasably retain themotion body 200 and may define a path of movement of themotion body 200. In some examples, thesecond definition mechanism 170 may define an application location of themedical device 800.

In some examples, thesecond restraint mechanism 170 may include anupper bottom 172, alower bottom 176, andsides 174 connecting theupper bottom 172 and the lower bottom 176 (see fig. 7B). In some examples, theupper base 172 may be formed by an end of the firstdefining mechanism 150 near the proximal end extending outward in a direction generally orthogonal to the central axis CA. Theside portion 174 may have a hollow cylindrical structure, and the extending direction of theside portion 174 may be substantially parallel to the central axis CA.Lower base 176 may be formed byside 174 extending outwardly from an end near the proximal end in a direction generally orthogonal to central axis CA.

In some examples, the second limitingmechanism 170 can include a rib slot 178 (see fig. 7B) disposed on theside portion 174.Rib slots 178 may mate withperipheral ribs 112 ofperipheral portion 110 to provide a fitted combination offirst housing 100 andsecond housing 140.

In some examples, aside catch 182 is provided on an inner wall of theside 174 of the second limiting mechanism 170 (see fig. 7A). Theside catching slots 182 may cooperate with a cover catching portion 194 (described later) of thecover 190 to fit and couple thesecond housing 140 with thecover 190.

In some examples, the second limitingmechanism 170 can further include a first flange 183 (see fig. 7B).

Fig. 8 is a schematic view showing acover 190 according to an example of the present embodiment; fig. 9 is a schematic diagram showing a positional relationship between thecover 190 according to the example of the present embodiment and theassist mechanism 20 when the cover is attached to thehousing 10. In fig. 9, in order to better show the positional relationship between thecover 190 and theassist mechanism 20, some of the members that may be affected are hidden.

In some examples, as described above, theapplicator 1000 may further include a cover 190 (see fig. 4). Thecover 190 may be detachably provided to thehousing 10. For example, thecover 190 may be provided at the proximal end of thehousing 10.

In some examples, thelid 190 may include alid base 192, and a lid catch 194 (see fig. 8) disposed on thelid base 192. Thecover snap 194 may mate with theside snap slot 182 of thesecond housing 140 to mate thecover 190 with thesecond housing 140.

In some examples, the number of cover snaps 194 may be multiple, such as 1, 2, 3, or 4. The number ofcover engaging portions 194 may be equal to the number ofside card slots 182. In the embodiment shown in fig. 8, the number of thecover catching portions 194 may be 2, and thecover 190 may include acover catching portion 194a and acover catching portion 194 b. Thecover snap portions 194a and 194b may be distributed on opposite sides of thecover bottom 192 along an axis of symmetry of thecover 190.

In some examples, thecover snap 194 may include an arm extending distally from thecover bottom 192 generally along the central axis CA, and a protrusion protruding from an end of the arm in a direction away from the central axis CA. The arms of thecover catching part 194 may have elasticity. When thecover 190 is assembled with thesecond housing 140, the protrusions of thecover catching portions 194 may catch in theside catching grooves 182 of thesecond housing 140.

In some examples, thecover 190 may include a restriction 196 (see fig. 8). The restrictingportion 196 may be used to restrict theassist mechanism 20. Here, the restriction of the assistingmechanism 20 by the restrictingportion 196 may refer to restricting the movement of the assistingmechanism 20 toward the proximal end of thehousing 10 to suppress the undesired movement of the assistingmechanism 20 toward the proximal end of thehousing 10. In this case, therestriction portion 196 can restrict the undesired movement of theassist mechanism 20 toward the proximal end, and the adverse effect of the erroneous operation can be reduced.

In some examples, the axis of therestriction 196 may be substantially parallel to the central axis CA. In some examples, therestrictions 196 may be formed by thelid bottom 192 extending distally. For example, therestrictions 196 may be formed by thelid bottom 192 extending distally along the central axis CA.

In some examples, when the movingbody 200 is retained, there may be a predetermined spacing between a proximal-facing surface of themedical instrument 800 received in the receivingportion 250 and a distal-facing surface of the restrainingportion 196. The predetermined spacing may be within a predetermined range (e.g., within 1mm-10 mm). In this case, when thecover 190 is provided at the proximal end of thehousing 10, the movement of the movingbody 200 can be restricted within a predetermined range (e.g., within 1mm to 10 mm) by the restrictingportion 196.

In some examples, the predetermined interval may be 0. In this case, a distally facing surface of therestraint portion 196 may abut a proximally facing surface of themedical instrument 800 received within thereceptacle 250 to support themedical instrument 800. The present invention is not limited thereto, and the range of the predetermined interval may be adjusted according to actual needs.

In some examples, a vertical distance between a proximal-facing surface of themedical instrument 800 received in the receivingportion 250 and thelower bottom portion 176 of thesecond housing 140 may be substantially equal to a height of the restrictingportion 196 when the movingbody 200 is held. The height of therestrictions 196 may refer to the vertical distance from thelid bottom 192 to the distally facing surface of therestrictions 196. In this case, when thecover 190 is fit-coupled with thesecond housing 140, themedical instrument 800 accommodated in theaccommodating portion 250 can be supported by the restrictingportion 196, whereby it is possible to suppress the movingbody 200 from being undesirably released due to, for example, an erroneous operation.

In some examples, when thecover 190 is provided to thehousing 10, the restrictingportion 196 may restrict theassist mechanism 20; when thecover 190 is separated from thehousing 10, the restrictingportion 196 may release the restriction of theassist mechanism 20. In the embodiment shown in fig. 9, the movingbody 200 is held and thecover 190 is provided at the proximal end of thehousing 10, in which case, even if the movingbody 200 is released by the holdingportion 130, when the movingbody 200 is actuated to a position where the proximal-facing surface of themedical instrument 800 accommodated in theaccommodating portion 250 meets the distal-facing surface of the restrictingportion 196, the restrictingportion 196 can support themedical instrument 800 accommodated in theaccommodating portion 250, whereby it is possible to suppress adverse effects caused by, for example, an erroneous operation causing the movingbody 200 to be undesirably released.

In some examples, thecover 190 may also include a second flange 198 (see fig. 8). Thesecond flange 198 of thecover 190 may be positioned to correspond to thefirst flange 183 of thesecond housing 140. Specifically, when thecover 190 is assembled and combined with thesecond housing 140, the projection plane of thesecond flange 198 and the projection plane of thefirst flange 183 may substantially coincide, or the projection plane of thesecond flange 198 may substantially cover the projection plane of thefirst flange 183, as projected in the direction along the center axis CA.

In some examples, the piercingmember 260 of the movingbody 200 may be releasably retained by the movingbody 200. In some examples, the movingbody 200 may have afirst bottom 210 near the distal end, asecond bottom 220 near the proximal end, and asidewall 230 connecting thefirst bottom 210 and the second bottom 220 (see fig. 6A).

In some examples, a hollow may be formed between thefirst bottom 210, thesecond bottom 220, and theside wall 230.

In some examples, thereceptacle 250 may be disposed at thesecond bottom 220 and facing proximally. In other words, the receivingportion 250 may be provided at a side of the movingbody 200 near the proximal end.

In some examples, piercingmember 260 may be disposed within the hollow. In some examples, thesecond bottom 220 may have a throughhole 226. Additionally, in some examples, the piercingmember 260 may pass through the throughhole 226.

In some examples, piercingmember 260 may be releasably disposed within the hollow. In addition, the piercingmember 260 may be configured to be movable within the hollow portion relative to the movingbody 200 when released.

In some examples, asecond drive mechanism 40 may be disposed between thesecond bottom 220 of the movingbody 200 and the piercing member 260 (see fig. 6A). Thesecond drive mechanism 40 is configured to act on the piercingmember 260 towards the distal end. When the piercingmember 260 is released, thesecond drive mechanism 40 may act distally on the piercingmember 260 to move the piercingmember 260 away from the host.

In the following, the application process of theapplication device 1000 is described again: detaching thecover 190 from the distal end of thehousing 10, actuating the holdingportion 130 to pivot away from the central axis CA by thetrigger mechanism 50 to disengage the holdingportion 130 from the lockingportion 236, thereby releasing the movingbody 200; next, thefirst driving mechanism 30 acts on the movingbody 200 in a proximal direction to move the movingbody 200 in the proximal direction; next, themedical device 800 housed in thehousing 250 is placed at least partially subcutaneously in the host by the action of the piercingmember 260; thesecond drive mechanism 40 then acts distally on the piercingmember 260 to move the piercingmember 260 away from the host.

While the utility model has been described in detail in connection with the drawings and the embodiments, it is to be understood that the above description is not intended to limit the utility model in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the true spirit and scope of the utility model, and such modifications and variations are within the scope of the utility model.

Claims (10)

1. An application device for applying a medical instrument to a host, characterized in that: the application device includes a housing having a movement space, a cover detachably covering the housing, and an assist mechanism provided in the movement space, the housing including a proximal end that is close to a host when operated and a distal end that is remote from the host, and a holding portion releasably holding the assist mechanism, the cover being provided at the proximal end and including a restricting portion configured to releasably restrict the assist mechanism, the assist mechanism being configured to receive the medical instrument and to be drivable toward the proximal end when the assist mechanism is released and unrestrained to apply the medical instrument received in the assist mechanism to the host, wherein the restricting portion releases the restriction of the assist mechanism when the cover is separated from the housing.

2. The applicator of claim 1, wherein:

the shell comprises a first shell and a second shell, and the first shell and the second shell form the moving space after being assembled and combined.

3. The applicator of claim 1, wherein:

the casing has the lateral part draw-in groove, the lid including the lid bottom, and set up lid block portion on the lid bottom, lid block portion with the cooperation of lateral part draw-in groove makes the lid with the casing assembly combines.

4. The applicator of claim 1, wherein:

the cap includes a cap bottom, and the restriction is formed by extending from the cap bottom toward the distal end.

5. The applicator of claim 4, wherein:

when the assist mechanism is held by the holding portion and the cover is provided to the housing, a surface of the medical instrument accommodated in the assist mechanism facing the proximal end abuts against a surface of the restricting portion facing the distal end.

6. The applicator of claim 4, wherein:

when the assist mechanism is held by the holding portion and the cover is provided to the housing, a predetermined interval, which is in a range of 1mm to 10mm, is provided between a surface of the medical instrument accommodated in the assist mechanism, which faces the proximal end, and a surface of the restricting portion, which faces the distal end.

7. The applicator of claim 1, wherein:

the assist mechanism includes a moving body releasably retained by a retaining portion, a receiving portion provided on the moving body and facing the proximal end for receiving the medical instrument, and a piercing member releasably provided on the moving body, the moving body being configured to be actuable toward the proximal end upon release to push the medical instrument received in the receiving portion toward a host.

8. The applicator of claim 7, wherein:

the assist mechanism includes a lock portion that cooperates with the holding portion to releasably hold the moving body to the housing.

9. The applicator of claim 1, wherein:

the medical device includes a sensor that can be partially or entirely placed under the skin of the host, and an application portion that is connected to the sensor and can be applied to the body surface of the host.

10. The applicator of claim 7, wherein:

the applicator device further comprises a first drive mechanism configured to act toward the moving body toward the proximal end and a second drive mechanism configured to act toward the penetrating member toward the distal end.

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